CN203312375U - Shell for lithium ion battery - Google Patents
Shell for lithium ion battery Download PDFInfo
- Publication number
- CN203312375U CN203312375U CN2013202821776U CN201320282177U CN203312375U CN 203312375 U CN203312375 U CN 203312375U CN 2013202821776 U CN2013202821776 U CN 2013202821776U CN 201320282177 U CN201320282177 U CN 201320282177U CN 203312375 U CN203312375 U CN 203312375U
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- CN
- China
- Prior art keywords
- shell
- lithium ion
- ion battery
- battery
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a shell for a lithium ion battery. The shell comprises a cylinder body and an upper cover, wherein the inner wall of the cylinder body is provided with a resilient pad. The shell is capable of effectively solving the electrode plate contacting problem of a positive electrode and a negative electrode in the lithium ion battery shell with certain intensity. The stretching of the resilient pad in the shell is used for extruding and releasing the internal space of the shell to achieve the aim of compressing electrode plates at the early stage and preventing the battery from expanding and deforming in recycling at the later stage, so as to improve the performance and quality of the battery. The shell disclosed by the utility model is simple in structure, durable and low in manufacturing cost.
Description
Technical field
The utility model belongs to the chemical power source technical field of lithium batteries, is specifically related to a kind of lithium ion battery housing.
Background technology
The lithium ion battery packing has two kinds, and a kind of is the aluminum plastic film flexible package; Another kind has the housing packing of some strength, the plastic casing that mainly contains box hat, aluminum hull and grew up in recent years.Flexible packing lithium ion battery adopts the mode of vacuum seal, the both positive and negative polarity pole piece by atmospheric pressure pressed very tight, the contact of both positive and negative polarity pole piece is good, the performance of battery can access fine performance.And the housings such as aluminum hull packing lithium ion battery is realized both positive and negative polarity pole piece close contact problem by very high assembling pressure.But make like this battery, in use tend to distortion " bulge " occur, because battery pole piece can expand in the repeated charge process, the pressure of inside battery can progressively promote.Common way is in the battery design process, generally to leave 5 ~ 10% spaces, left and right to hold nargin, prevents housing distortion.Even also have in addition a kind of situation also not realize the pole piece close contact by high assembling pressure, this is because of the coating machine used in lithium ion battery production, and owing on its mechanism, having defect, the battery pole piece head and the tail of producing often are thicker than zone line partially.The utmost point group that the folded code of multiple pole pieces is produced is intermediate thin often, thick up and down.This situation, although assembling pressure has arrived the upper limit, the centre position of pole piece still contacts bad, very large to the performance impact of battery.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and cost is low, can effectively prevent distortion, and then greatly improves the lithium ion battery housing of battery performance and quality.
The technical solution of the utility model is: the lithium ion battery housing, comprise upper cover, cylindrical shell, and its improvements are that cylinder inboard wall is provided with elastomeric pad.
Further scheme is: the both sides inwall that described cylindrical shell is parallel to putting pole piece is provided with elastomeric pad; Described pad is aluminium flake, stainless steel substrates or polypropylene, polyethylene material; Described pad is corrugated or latticed.
With existing battery container, compare, the utility model mainly contains following advantage:
Adopt this lithium-ion battery shell, due to cylinder inboard wall, the both sides inwall that particularly is parallel to putting pole piece is provided with elastomeric pad, can thoroughly solve the inner both positive and negative polarity pole piece of the lithium-ion battery shell contact problems of some strength.Utilize elastomeric pad push and discharge the enclosure interior space at the flexible of enclosure interior, reach and compress the purpose that pole piece and later stage prevent from recycling middle cell expansion distortion early stage, and then improve battery performance and quality.Pad used adopts specific material and shape, can guarantee its decay resistance and reliable elasticity.The utility model is simple in structure, and cost is low.
The accompanying drawing explanation
Fig. 1 is battery container cutaway view of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the utility model is described further.
Embodiment 1
Lithium ion battery is comprised of cylindrical shell 2, upper cover 4, elastomeric pad 1 with housing.Elastomeric pad is the ripple stainless steel substrates, parallel with institute's pole piece of putting 3 in cylindrical shell, is inserted between pole piece and cylinder inboard wall.
Elastomeric pad is the latticed pad of being made by polypropylene material, and all the other are with embodiment 1.
Claims (4)
1. a lithium ion battery housing, comprise upper cover, cylindrical shell, it is characterized in that cylinder inboard wall is provided with elastomeric pad.
2. lithium ion battery housing according to claim 1, it is characterized in that: the both sides inwall that described cylindrical shell is parallel to putting pole piece is provided with elastomeric pad.
3. lithium ion battery housing according to claim 1, it is characterized in that: described pad is aluminium flake, stainless steel substrates or polypropylene, polyethylene material.
4. lithium ion battery housing according to claim 1, it is characterized in that: described pad is corrugated or latticed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202821776U CN203312375U (en) | 2013-05-22 | 2013-05-22 | Shell for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202821776U CN203312375U (en) | 2013-05-22 | 2013-05-22 | Shell for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312375U true CN203312375U (en) | 2013-11-27 |
Family
ID=49618554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202821776U Expired - Fee Related CN203312375U (en) | 2013-05-22 | 2013-05-22 | Shell for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577184B (en) * | 2013-10-25 | 2016-09-14 | 北京好风光储能技术有限公司 | A kind of high voltage power battery |
-
2013
- 2013-05-22 CN CN2013202821776U patent/CN203312375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577184B (en) * | 2013-10-25 | 2016-09-14 | 北京好风光储能技术有限公司 | A kind of high voltage power battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Double park Dengke Liang Xu town Jiangyan District Jiangsu city of Taizhou province No. 1 225526 Patentee after: Jiangsu Shuangdeng frontan new energy Co. Ltd. Address before: Double park Dengke Liang Xu town Jiangyan District Jiangsu city of Taizhou province No. 1 225526 Patentee before: Jiangsu Front New Energy Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |